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wave
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cpp_lex_interface.hpp
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/*============================================================================= Boost.Wave: A Standard compliant C++ preprocessor library Definition of the abstract lexer interface http://www.boost.org/ Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) =============================================================================*/ #if !defined(BOOST_CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED) #define BOOST_CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED #include <boost/wave/wave_config.hpp> #include <boost/wave/util/file_position.hpp> #include <boost/wave/language_support.hpp> // this must occur after all of the includes and before any code appears #ifdef BOOST_HAS_ABI_HEADERS #include BOOST_ABI_PREFIX #endif // suppress warnings about dependent classes not being exported from the dll #ifdef BOOST_MSVC #pragma warning(push) #pragma warning(disable : 4251 4231 4660) #endif /////////////////////////////////////////////////////////////////////////////// namespace boost { namespace wave { namespace cpplexer { /////////////////////////////////////////////////////////////////////////////// // // The lex_input_interface decouples the lex_iterator_shim from the actual // lexer. This is done to allow compile time reduction. // Thanks to JCAB for having this idea. // /////////////////////////////////////////////////////////////////////////////// template <typename TokenT> struct lex_input_interface { typedef typename TokenT::position_type position_type; lex_input_interface() {} virtual ~lex_input_interface() {} virtual TokenT& get(TokenT&) = 0; virtual void set_position(position_type const &pos) = 0; #if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0 virtual bool has_include_guards(std::string& guard_name) const = 0; #endif }; /////////////////////////////////////////////////////////////////////////////// } // namespace cpplexer } // namespace wave } // namespace boost #ifdef BOOST_MSVC #pragma warning(pop) #endif // the suffix header occurs after all of the code #ifdef BOOST_HAS_ABI_HEADERS #include BOOST_ABI_SUFFIX #endif #endif // !defined(BOOST_CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED)